Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1991-3-13
pubmed:abstractText
The alpha-helix is a common element of secondary structure in proteins and peptides. In eukaryotic organisms, which exclusively incorporate L-amino acids into such molecules, stereochemical interactions make such alpha-helices, invariably right-handed. Pseudomonas tolaasii Paine is the causal organism of the economically significant brown blotch disease of the cultivated mushroom Agaricus bisporus (Lange) Imbach. P. Tolaasii proceduces an extracellular lipodepsipeptide toxin, tolaasin, which causes the brown pitted lesions on the mushroom cap. Circular dichroism studies on tolaasin in a membrane-like environment indicate the presence of a left-handed alpha-helix, probably formed by a sequence of 7 D-amino acids in the peptide. P. tolaasii represents the first reported example of an organism which has evolved the ability to biosynthesize a left-handed alpha-helix.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
278
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
244-6
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Left handed alpha-helix formation by a bacterial peptide.
pubmed:affiliation
University Chemistry Laboratory, Cambridge, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't